From: Jon Loeliger <jdl@freescale.com>
Date: Fri, 20 Apr 2007 19:11:38 +0000 (-0500)
Subject: mpc86xx: protect memcpy to bad address if a mac-address is missing from dt
X-Git-Tag: v1.3.0-rc1~93^2~5
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=7dbdf28b8bd855a8530dc3292e4982575a197060;p=oweals%2Fu-boot.git

mpc86xx: protect memcpy to bad address if a mac-address is missing from dt

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
---

diff --git a/cpu/mpc86xx/cpu.c b/cpu/mpc86xx/cpu.c
index 84f5bef508..73de8cb4af 100644
--- a/cpu/mpc86xx/cpu.c
+++ b/cpu/mpc86xx/cpu.c
@@ -280,22 +280,26 @@ ft_cpu_setup(void *blob, bd_t *bd)
 
 #if defined(CONFIG_MPC86XX_TSEC1)
 	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/mac-address", &len);
-	memcpy(p, bd->bi_enetaddr, 6);
+	if (p != NULL)
+		memcpy(p, bd->bi_enetaddr, 6);
 #endif
 
 #if defined(CONFIG_MPC86XX_TSEC2)
 	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/mac-address", &len);
-	memcpy(p, bd->bi_enet1addr, 6);
+	if (p != NULL)
+		memcpy(p, bd->bi_enet1addr, 6);
 #endif
 
 #if defined(CONFIG_MPC86XX_TSEC3)
 	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@26000/mac-address", &len);
-	memcpy(p, bd->bi_enet2addr, 6);
+	if (p != NULL)
+		memcpy(p, bd->bi_enet2addr, 6);
 #endif
 
 #if defined(CONFIG_MPC86XX_TSEC4)
 	p = ft_get_prop(blob, "/" OF_SOC "/ethernet@27000/mac-address", &len);
-	memcpy(p, bd->bi_enet3addr, 6);
+	if (p != NULL)
+		memcpy(p, bd->bi_enet3addr, 6);
 #endif
 
 }